If you look at the crosstabs from this poll, Romney is actually doing better than Bachmann among white evangelical/born-again Christians. I'm starting to doubt the alleged anti-Mormom backlash.
I also found it interesting that in the primary Romney was polling at only 13% among Republican men and 20% among Republican women, while Bachmann was at 9% among women and 13% among men. I'm not sure what the margin of error on the crosstabs is, but it still seems interesting to me.
Conservative men are somewhat more likely to go for the let's just tear it all down and start over "program." Bachmann saying she won't raise the debt limit by a dime, without a balanced budget amendment and the repeal of Obamacare, fits in with that. Just shut it all down baby! Send the bureaucrats home.